2012-2018 Audi A8/S8 Coolant Reservoir Tank Hose 4H0121109C

OEM Part #: 4H0-121-109-C (4H0121109C)

$7.21
Used
Donor2013 Audi A8 · 4.0L
SKU: 566695 · 30-Day Returns
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Coolant Reservoir Tank Hose 4H0121109C — Used (SKU 566695)
Genuine OEM Used SKU: 566695 Donor Vehicle: 2013 Audi A8 · 4.0L 2 photos
$7.21
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A used genuine OEM Audi Coolant Reservoir Tank Hose, part number 4H0121109C, has been removed from a donor vehicle. This coolant hose connects the expansion tank to the cooling system; when it fails, you'll typically see coolant leaks at the connection points or a drop in reservoir level. It came from an Audi A8 or S8 equipped with the 4.0L twin-turbo V8 or the 6.3L W12.

Specifications

Specifications for Coolant Reservoir Tank Hose 4H0121109C
Fits Vehicle ModelA8, S8
Fits Vehicle MakeAudi
OEM Part No4H0-121-109-C (4H0121109C)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 20 vehicle configurations across 1 make, 2012-2018.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Audi

  • A8 2012-2018 · 14 variants 9 with notes
  • S8 2013-2018 · 6 variants 6 with notes
View all 20 vehicle configurations — 15 with fitment notes
Full vehicle fitment list for Coolant Reservoir Tank Hose 4H0121109C
Year Make Model Trim Engine Note
2018 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2018 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2016 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2017 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2017 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2012 Audi A8 Quattro L Sedan 6.3L W12
2013 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA, CGTA
2013 Audi A8 Quattro L Sedan 6.3L W12
2014 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA, CGTA
2014 Audi A8 Quattro L Sedan 6.3L W12
2014 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA, CGTA
2013 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA, CGTA
2014 Audi A8 Quattro Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA, CGTA
2015 Audi A8 Quattro Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2015 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2015 Audi A8 Quattro L Sedan 6.3L W12
2016 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2015 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2016 Audi A8 Quattro L Sedan 6.3L W12
2013 Audi A8 Quattro Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA, CGTA

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